97 results about "Power distribution center" patented technology

A wiring and power distribution device for a cabinet housing electronic equipment. The distribution device includes a plurality of compartments. Each compartment adapted to contain an electronic component, such as an uninterruptible power supply, a power-conditioning device, or a power distribution center containing circuit breakers. The distribution device also includes a cooling compartment, including a fan or passive convective chimney arranged to cool the interior of the cabinet with ambient air. The distribution device provides a single input point for power and signal wiring, and at least one output point for connection to the electronic devices contained within the cabinet.

A system, in one embodiment, includes a power distribution center having an enclosure with an access door configured to move between a closed position and an open position. The power distribution center includes a non-contact sensor disposed inside the enclosure, wherein the non-contact sensor comprises a non-contact voltage sensor, or a non-contact temperature sensor, or a combination thereof. The power distribution center also includes an indicator viewable outside of the enclosure while the door is in the closed position, wherein the indicator is coupled to the non-contact sensor.

A system, in one embodiment, includes a power distribution center having an enclosure with an access door configured to move between a closed position and an open position. The system also includes a monitoring system configured to monitor operational parameters inside the enclosure. Also, the system includes an entry control system coupled to the monitoring system, wherein the entry control system is configured to lock the access door if the operation parameters are indicative of a potentially hazardous condition inside the enclosure.

An electrical distribution system is disclosed that includes a gateway module (100) including logic (112) to interface to a vehicle management computer (VMC) (50) via a dual redundant standard data bus (1). The gateway module (100) has redundant microcontrollers (114, 116) operably connected to the VMC (50) for selectively controlling supply of electrical power to a plurality of separate electrical loads (120). The electrical power distribution center also has two internal serial data buses (2,3) that are of two different types. The redundant microcontrollers (114, 116) are each connected to the two internal buses (2,3). A plurality of Load Management Modules (300) is provided. Each are connected to the internal serial data buses (2,3) for receiving control commands via the gateway module (110). Each Load Management Module (300) includes a local microcontroller (310); a plurality of power switching devices (320); and a plurality of application specific integrated circuits (330) corresponding to the plurality of power switching devices (320) for interfacing the power switching devices (320) to the local microcontroller (310).

This transformer test control device permits testing of an electrical transformer as installed on a power pole without connecting any high voltage of the power distribution line to the transformer, thereby significantly enhancing the safety of the lineman during the testing procedure. A test control device for controlling the testing of an electrical transformer combines a visual indicator acting as both a power-on indicator and a fuse tester, a voltmeter, a voltage adjustment control, an operator control switch and a fuse as well as terminals for connecting both to an alternating current electrical supply and to the terminals of the primary coil of a transformer to be tested. Additionally, the test control device includes terminals for connecting the device and a secondary circuit to selected output terminals of the secondary coil of the transformer and additional terminals for receiving and retaining the contact portions of voltmeter test probes. The test control device simplifies the transformer testing and aids the lineman in testing while maintaining high standards for safety practices and, especially, during adverse weather conditions. This device may be embodied to include a dedicated second voltmeter. The test control device may be powered by either normal 120 volt line voltage or the output of a power inverter connected to the electrical system of a truck or other motor vehicle in those areas without readily available 120 volt AC power.

A system, in one embodiment, includes a power distribution center having an enclosure with an access door configured to move between a closed position and an open position. The power distribution center includes a non-contact sensor disposed inside the enclosure, wherein the non-contact sensor includes a non-contact voltage sensor, or a non-contact temperature sensor, or a combination thereof. The power distribution center also includes an indicator viewable outside of the enclosure while the door is in the closed position, wherein the indicator is coupled to the non-contact sensor.

The invention discloses a power capacity distribution system for charging piles and a control method therefor, wherein the system includes: a plurality of charging piles, each of the plurality of charging piles being connected to a power supply; a user conventional load; a first current detection module for detecting a current of the user conventional load; a plurality of second current detection modules for correspondingly detecting a work current of each charging pile; and a distribution center module which performs the power capacity distribution on the charging piles which bring forward power capacity increasing applications according to a difference power supply capacity between an actual total power capacity of the power supply and a rated power supply capacity of the power supply, an actual power capacity of the user conventional load, and an actual power capacity of each charging pile when the actual total power capacity of the power supply is less than the rated power capacity. The system can perform reasonable distribution on the power capacity of each charging pile in the limited power supply capacity, alleviates the bottleneck problem of the power supply capacity, improves the efficiency, and promotes the user experience.

The invention discloses an intelligent DC power distribution center-based urban distribution network grid structure, which comprises more than two groups of 10KV back-to-back multi-terminal DC power distribution systems, wherein each 10KV back-to-back multi-terminal DC power distribution system comprises an AC / DC converter and a DC / AC converter; four shutdown switches are connected between the AC / DC converter and the DC / AC converter in series; adjacent 10KV back-to-back multi-terminal DC power distribution systems are connected with each other through a sixth shutdown switch and a seventh shutdown switch; the sixth shutdown switch is connected between output ends of the first shutdown switches of the adjacent 10KV back-to-back multi-terminal DC power distribution systems; the seventh shutdown switch is connected between the output ends of the third shutdown switches of the adjacent 10KV back-to-back multi-terminal DC power distribution systems; and the input ends of the converters are connected through four groups of feeders connected with interconnection switches to form the grid structure. The technical problem that the prior art cannot adapt to a complicated power system, and especially the technical problems in the aspects of reliability improvement, control power flow adjustment, distributed power supply connection and the like are solved.

The invention relates a power distribution system (1) like a track lighting system comprising a power supply (2), a power bar (3) comprising several electrical conductors (4, 5, 6) for distributing the power, an electrical load (12) to be powered by the power of the power distribution system, a selector switch (11) connected to the several electrical conductors and to the electrical load, wherein the selector switch is adapted to select via which electrical conductor the power is to be received by the electrical load, and a controlling device (10) for automatically controlling the selector switch. This kind of power distribution system provides a relatively large variability of adapting the power consumption to an actual load situation, which can lead to an improved performance of the power distribution system. In particular, power balancing can be provided in a relatively simple way by automatically controlling the selector switch accordingly.

An aircraft electrical power system includes a monitored load (e.g. group of lightbulbs) connected through a sub-system power unit and a power distribution center to a power bus. A current monitor of the power distribution center is able to detect a total failure of the sub-system power unit and its connected monitored load, but is not able directly to detect the failure of a single load component (e.g. single lightbulb). The sub-system power unit includes a fault detector able to detect a fault or failure of a single load component (e.g. single lightbulb) in the monitored load. When the fault detector detects such a fault, the sub-system power unit generates a modulated current signal in the current drawn by the sub-system power unit, with a magnitude greater than the detection threshold of the power distribution center, which thus recognizes the detected fault based on the modulated current signal.

The renewable energy station comprising: a housing containing a main central controller and an electrical power distribution center connected to this main central controller. The station comprises wind turbines solar panels, batteries, and a gas / diesel engine-generator. Loads are connected to the electrical power distribution center. The wind turbines and the solar panels are grouped into a plurality of generating cells wherein each generating cell comprises at least one wind turbine and at least one solar panel. The main central controller and the electrical distribution center jointly have switching and control equipment therein for selectively connecting and disconnecting each of the loads to and from the electrical power distribution center. Reactive-type loads are given priority over resistive-type loads. The heat from the gas / diesel engine-generator is used to melt snow and ice from the solar panels. Tandem connection of two stations is done via an inlet receptacle on each station.

The invention relates to a method for realizing power distribution network closed loop and photovoltaic concentrated access by adopting flexible DC (direct current) power transmission. Two feeder lines are led out from each of two main transformers respectively and correspondingly; the four feeder lines are correspondingly connected to AC (alternating current) buses through connecting units respectively; in a flexible DC power transmission system, DC buses connected with DC boost ends of photovoltaic power generation modules are correspondingly arranged on two sides of a DC power transmission loop; during normal operation, the load, supplied by transformer substations, of the four feeder lines is smaller than or equal to 75% of the thermal stability limit power of a single feeder line, flexible DC converters in the flexible DC power transmission system operate as inverters, and the electric power sent out by the photovoltaic power generation modules are transmitted to 10 kilovolt feeder lines. According to the method, the power distribution reliability is high, the transformation is small, the comprehensive investment in inverters is reduced, and the method is suitable for an occasion with high requirement for power distribution reliability and needing grid connection of photovoltaic power stations.

The invention relates to a powered device (2) like a luminaire for being used in a power distribution system (100), which is preferentially a PoE system and which comprises a power sourcing device (1) for sourcing a power to the powered device. The powered device comprises an electrical load like an LED and an electrical load power providing unit for generating from the sourced power an electrical load power and for providing the electrical load power to the electrical load, wherein the electrical load power providing unit is adapted to generate the electrical load power with a power level such that an input current drawn by the powered device from the power sourcing device is maximized below a predefined upper input current threshold. This allows increasing the power consumption of the powered device in comparison to the power consumption of powered devices in accordance with the PoE standard IEEE 802.3at.

The invention relates to an integrative power system relay protection setting calculation method. The method provides an integrative power relay protection setting calculation data platform, which is of a distributed data platform structure. The method overcomes defects of conventional systems. Servers are gradually built in provincial power distribution center and branch power distribution centers, management platforms and data are also allocated, and multiple resources are integrated, so that an integrative setting calculation method is offered. A software system of the integrative relay protection setting calculation platform adopts a browser / server (B / S) mode. As for overall structure, the software comprises five parts: a user interface, application logic, an application program interface, data service and data exchange with other systems. The overall process of setting calculation sequentially comprises formation of an electric power wiring diagram, short-circuit calculation, setting calculation, off-line verification and management of constant value advice notes. The method is convenient for users to perform setting calculation and greatly improves the setting calculation efficiency.

An electrical contactor draw out tray has a movable frame and a stationary frame in which the movable frame carries the electrical components for an electrical feeder circuit. The stationary frame is preferably housed within a power distribution center and has input terminals for the incoming electrical power and output terminals for delivering electrical power to equipment operating on the feeder circuit. The movable frame carries the contactors that control the flow of electricity through the apparatus as well as the electrical components to monitor conditions of the apparatus and various parameters for the electricity carried therein to for conditions such as short circuits, overloads, ground faults, overvoltages and undervoltages. A disconnect mechanism locks the movable frame relative the stationary frame and provides a primary means for disengaging electrical flow through the apparatus.

An electrical distribution center includes a plurality of electrical receptacles or ports which are activated when currency is deposited into a currency receiving mechanism that is coupled to a timer switch. Electricity is provided to the receptacles for a pre-paid period of time. Thereafter, the timer switch opens to prohibit further flow of electricity to the receptacles until additional currency is deposited or credited to the electrical distribution center. The electrical distribution center may be connected to an electrical grid or include an electricity generating source such as a solar panel and associated control circuitry.

ABSTRACT: A method for generating electricity from solar power to an emergency power distribution center relying on a photovoltaic panels (1) DC disconnects (2,3); charge controller (4); batteries (5); emergency power distribution center (7); electrical wires, and fuses. The photovoltaic panel(s) will generate electrical power that will provide sufficient power to run the emergency power distribution center.

An electrical power system includes an electrical power generating system (EPGS); one or more constant power loads powered by the EPGS; and a power management and distribution (PMAD) center located between the EPGS and the one or more constant power loads, the PMAD center comprising a plurality of load management channels, each of the plurality of load management channels corresponding to a respective constant power load, wherein each of the plurality of load management channels comprises a load management function and a decoupling filter.

The invention discloses an optimal dispatching method of a flexible medium-power direct-current distribution center containing multiple micro-grids. The optimal dispatching method comprises the stepsthat upper controllers of all sub-systems control optimal dispatching in the sub-systems; the medium-power direct-current upper controllers collect the transmission power of DC-AC and DC-DC interconnecting devices in real time, and communicate with an alternating current distribution management system and upper controllers of all the alternating-current and direct-current micro-grids; the upper controllers of all the alternating-current and direct-current micro-grids issues power instructions to DC-AC and DC-DC according to the optimal dispatching goals of the alternating-current and direct-current micro-grids, and control the intercommunication power of the alternating-current and direct-current micro-grids and the medium-power direct-current distribution center, and coordinated control over regions is achieved. The technical problems are solved that in the prior art, optimal dispatching is not conducted in the sub-systems of the micro-grids, coordinated control is not conducted between the sub-systems, so that the whole system is poor in stability, and the safe operation of the system is affected.

The invention relates to a power distribution system, such as a Power over Ethernet power distribution system. A powered device provides a pulse,such as a Maintain Power Signature, when in standby such that a power providing device remains providing power to it. To increase energy efficiency, the MPS can be cycled (60 ms pulse every 300 ms to 400 ms) according to the IEEE802.3af / at standards. By introducing a controllable switch, for electrically decoupling at least part of the powered device from the power providing device, and a pulse generator, the MPS can be generated in a more energy efficient way and / or can be shortened (e.g. to 5 ms). As an example, the controllable switch can decouple the bulk capacitor of the powered device during MPS generation to prevent the bulk capacitor from filtering out the MPS.

A power transformer and electrical current distribution device has a 480 V power inlet receptacle, at least one 120 V or 240 V power outlet receptacle, a transformer for transforming 480 V current to at least one of 120 V and 240 V current, and a first housing and a second housing each containing at least some of the 480 V inlet receptacle, the outlet receptacle and the transformer. A first part of an electrical connector is provided at the first housing, and a second part of an electrical connector at the second housing to mate with the first part of the electrical connector. The first housing part and the second housing part are electrically connected and disconnected at the electrical connector to permit transport of the power transformer and electrical current distribution device in at least two pieces.

There is disclosed a modular power distribution center that utilizes connectors for interconnectivity, as opposed to hard wiring and allows for the integration of electronics modules onto printed circuit board architecture.

The box has an accommodating section, into which a lower side of connectors (30) is inserted, formed at an upper side of a case (10). A power distribution center has a fixing section into which an upper side of the connectors is inserted through a lower side of the fixing section. Guides (31) are formed at the sides of the connector. A manipulating lever (51) moves a movable bar so as to open and close guide groove openings. - An INDEPENDENT CLAIM is also included for a method for assembling a junction box for vehicles.

The invention relates to the technical field of hybrid electric vehicles, in particular to a power distribution system and method of a hybrid electric vehicle. The system comprises a controller, an isolating switch, a power distribution control module, a high-voltage power source power distribution module connected with a first wiring contact of the isolating switch, and a low-voltage power sourceconnected with a second wiring contact of the isolating switch, wherein the isolating switch and the power distribution control module are connected with the controller. The high-voltage power sourcepower distribution module is used for being connected with a starter of the hybrid electric vehicle through the isolating switch so as to supply power to the starter. The low-voltage power source isused for supplying power to the starter connected with the low-voltage power source in series. The power distribution control module is used for obtaining working condition information of the hybrid electric vehicle and controlling the isolating switch to be turned on and off on the basis of the working condition information. Through reasonable power distribution, it is guaranteed that the voltageof the whole vehicle is stable, the fault of a blank screen of an instrument or the stall of an engine due to the insufficient power or the start voltage drop is prevented, and the operation stability of the hybrid electric vehicle can be improved.

The invention provides an oxyhydrogen gas engine power generating system using water as fuel. The oxyhydrogen gas engine power generating system using water as fuel comprises an engine, an electric generator, a hydrogen generator, a control system and a distribution center, wherein the hydrogen generator is connected with the engine through a pipe; the electric generator is connected with the engine through a shaft and is electrically connected with the distribution center and the hydrogen generator; and the hydrogen generator, the engine, the electric generator and the distribution center are electrically connected with the control system. Hydrogen and water vapor are generated through the engine by water electrolysis, the hydrogen and the water vapor are respectively delivered into cylinders, are compressed by pistons, and then are ignited by electronic igniters, and then energy is released; the fuel and the product are almost pollution-free, and the reliability of the engine is improved; a crankcase is connected with the pistons by one-way valve tubes, lubricating oil is arranged in the crankcase, abrasion of mechanical components is reduced, and the market value is high.